#! /usr/bin/env python
# -*- coding: utf-8 -*-
__author__ = 'abcdefg'
__time__ = '27/06/18 下午5:31'


# 公用的自定义工具类
def do_index_class(index):
    """
    返回指定索引对应的类名
    :return:
    """
    if index == 1:
        return "first"
    elif index == 2:
        return "second"
    elif index == 3:
        return "first"
    return ""
